State Route 91 over Gypsum Canyon Creek
Good Condition55 years old290,000 vehicles/day
Location
| State | California |
| County | Orange |
| Location | 12-ora-091-r16.46-ana |
| Carries | State Route 91 |
| Crosses | Gypsum Canyon Creek |
| Coordinates | 33.86602, -117.71059 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 38.1 ft (11.6 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Width | 188.3 ft (57.4 m) |
| Deck Area | 665.8 sq m |
| Main Spans | 3 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 290,000 (2020) |
| Truck Traffic | 8% |
| Lanes On Bridge | 14 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 55 0607 |